21110030130 has 64 divisors (see below), whose sum is σ = 57980574720. Its totient is φ = 4818585024.

The previous prime is 21110030129. The next prime is 21110030153. The reversal of 21110030130 is 3103001112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87177 + ... + 223203.

It is an arithmetic number, because the mean of its divisors is an integer number (905946480).

Almost surely, 2^21110030130 is an apocalyptic number.

21110030130 is an abundant number, since it is smaller than the sum of its proper divisors (36870544590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110030130 is a wasteful number, since it uses less digits than its factorization.

21110030130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136783.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21110030130 its reverse (3103001112), we get a palindrome (24213031242).

The spelling of 21110030130 in words is "twenty-one billion, one hundred ten million, thirty thousand, one hundred thirty".